'Does the recent news by scientists of a comet containing a chemical building block of life furnish evidence that comets were responsible for life's origin on Earth? In his book 'In The Beginning' MIT scientist Dr. Walt Brown mentions some thoughts concerning comets (Please consult his book to review his biographical sources behind the footnotes. His book is free to access and read... URL: http://www.ufodigest.com/news/0809/comets.php - 37KB - 23 Oct 2009